Tenable Ownership | Who Owns Tenable?


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Tenable Ownership Summary


Tenable is owned by 44.73% institutional investors, 1.96% insiders, and 53.31% retail investors. Vanguard group is the largest institutional shareholder, holding 12.41% of TENB shares. Columbia Seligman Tech & Info A is the top mutual fund, with 3.49% of its assets in Tenable shares.

TENB Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockTenable44.73%1.96%53.31%
SectorTechnology Stocks 50.72%12.57%36.71%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group14.96M12.41%$436.31M
Blackrock funding, inc. /de13.15M10.91%$383.46M
Blackrock10.62M9.04%$462.91M
Ameriprise financial7.18M5.96%$209.35B
Rgm capital4.47M3.71%$130.29M
Shapiro capital management3.61M3.00%$105.34M
First trust advisors lp3.22M2.67%$93.89M
State street3.05M2.53%$89.05M
Geode capital management2.94M2.44%$85.69M
Assenagon asset management2.55M2.12%$74.34M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Washington harbour partners lp98.02K7.16%$3.86M
Rgm capital4.47M5.48%$130.29M
Shapiro capital management3.61M4.56%$105.34M
Firetrail investments pty305.64K2.22%$8.84M
Graphene investments sas108.50K2.00%$3.16M
Monimus capital management, lp84.75K1.52%$2.47M
Bullseye asset management99.11K1.51%$2.89M
Kent lake pr100.00K1.47%$2.92M
Penserra capital management2.18M0.76%$63.62M
Emerald advisers556.93K0.52%$16.24M

Top Buyers

HolderShares% AssetsChange
Royal bank of canada1.65M0.01%1.53M
Norges bank1.40M0.01%1.40M
Shapiro capital management3.61M4.56%1.01M
Barclays1.68M0.01%833.13K
Vanguard group14.96M0.01%778.70K

Top Sellers

HolderShares% AssetsChange
Fmr1.51M0.00%-3.08M
William blair investment management---2.43M
Morgan stanley2.31M0.00%-1.91M
Arrowmark colorado---1.52M
Alyeska investment group905.90K0.08%-1.25M

New Positions

HolderShares% AssetsChangeValue
Norges bank1.40M0.01%1.40M$54.95M
Ossiam249.30K0.09%249.30K$7.27M
Susquehanna portfolio strategies180.85K0.08%180.85K$5.27M
Readystate asset management lp157.29K0.20%157.29K$4.59M
Exoduspoint capital management, lp120.05K0.04%120.05K$3.50M

Sold Out

HolderChange
Mather group, llc.-6.00
Ifp advisors-8.00
Bell investment advisors-14.00
Continuum advisory-15.00
Hexagon capital partners-17.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025138-49.63%53,913,972-47.69%440.61%80-48.39%41-53.93%
Jun 30, 2025283-5.98%111,325,0485.58%921.20%159-5.92%91-4.21%
Mar 31, 202513-95.64%8,497,885-92.15%70.09%7-95.78%4-95.65%
Dec 31, 2024156-47.83%67,305,734-37.28%560.70%87-44.94%47-50.53%
Sep 30, 20242981.02%107,310,436-0.57%901.09%1591.27%93-4.12%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Columbia Seligman Tech & Info A4.22M3.49%391.00K
Vanguard Total Stock Mkt Idx Inv3.80M3.14%-79.86K
Columbia Seligman Technology Growth3.83M3.14%449.30K
Vanguard US Total Market Shares ETF3.59M2.98%-226.10K
Vanguard Small Cap Index2.97M2.45%-17.74K
iShares Russell 2000 ETF2.87M2.37%-
First Trust NASDAQ Cybersecurity ETF2.70M2.23%3.76K
Vanguard Information Technology ETF2.36M1.95%24.09K
Amplify Cybersecurity ETF2.23M1.84%-
MUAM Cyber Security Equity Mother Fund1.95M1.64%-499.18K

Recent Insider Transactions


DateNameRoleActivityValue
Oct 17, 2025Anschutz Barron Principal Accounting OfficerSell$28.40K
Sep 09, 2025SEAWELL A BROOKE-Sell$462.00K
Sep 04, 2025SEAWELL A BROOKE-Sell$139.21K
Aug 26, 2025Thurmond Mark C. Co-Chief Executive OfficerSell$75.82K
Aug 26, 2025Vintz Stephen A Co-Chief Executive OfficerSell$103.37K

Insider Transactions Trends


DateBuySell
2025 Q4-1
2025 Q3-9
2025 Q2-6
2025 Q1-11
2024 Q4-12

TENB Ownership FAQ


Who owns the most shares of Tenable?

Tenable’s largest shareholders are Vanguard group (14.96M shares, 12.41%), Blackrock funding, inc. /de (13.15M shares, 10.91%), and Blackrock (10.62M shares, 9.04%). Together, they hold 32.36% of Tenable’s total shares outstanding.

Does Blackrock own Tenable?

Yes, BlackRock owns 9.04% of Tenable, totaling 10.62M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 462.91M$. In the last quarter, BlackRock increased its holdings by 230.17K shares, a 2.21% change.

Who is Tenable’s biggest shareholder by percentage of total assets invested?

Washington harbour partners lp is Tenable’s biggest shareholder by percentage of total assets invested, with 7.16% of its assets in 98.02K Tenable shares, valued at 3.86M$.

Who is the top mutual fund holder of Tenable shares?

Columbia Seligman Tech & Info A is the top mutual fund holder of Tenable shares, with 3.49% of its total shares outstanding invested in 4.22M Tenable shares.

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